In other words, use Fleet Marks for all rewards (and of course Dil) and projects instead of the 3-mark currency mess. I am hearing all over STO the difficulty with getting Fleet Marks.

This, a thousand times this. We have a ridiculous number of currencies in this game considering it exists in a universe where currency has been by and large abolished.

It would also give people a use for the fleet marks that they have amassed that are not needed in the fleet for whatever reason, or use those reputation points while the projects are on the (ridiculously long) cool down period.